import os

os.environ["MAIL_USERNAME"] = "uestc_like@163.com"
os.environ["MAIL_PASSWORD"] = "Asdfghjkl123"
os.environ["FLASKY_ADMIN"] = 'uestc_like@163.com'

env_dist = os.environ
for key in env_dist:
    print(key + ' : ' + env_dist[key])